Voices
- Jess Harnell as Shuff Valk Zaptor
- David P. Smith as Krader Volectro Zorch
- Tom Kenny as Flain Seismo Teslo
- Fred Tatasciore as Slumbo Jawg Major Nixels Nixels
- Phil LaMarr as Chomly Flurr Tentro
- Billy West as Balk Gobba Lunk
Additional Voices
- Carlos Alazraqui
- Jack Angel
- Jeff Bennett
- Greg Berg
- Bob Bergen
- Gregg Berger
- Rodger Bumpass
- John Cygan
- Jennifer Darling
- Debi Derryberry
- Paul Eiding'
- Bill Farmer
- Keith Ferguson
- Don Fullilove
- Hiro Kanagawa
- Pat Fraley
- Jess Harnell
- Khairo Ledeyo